Author: Dann Corbit
Date: 11:37:48 03/04/99
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On March 04, 1999 at 13:56:12, Jeremiah Penery wrote: >Here is the position: > >rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - bm Qxa8 d6 dxe6; id "WAC031"; > >Here's the EPD output my modified Crafty produces: > >rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - acd 11; acn 5979643; acs 30; bm >Qxa8 d6 dxe6; ce 411; id "WAC031"; pv g3 Bxg3 hxg3 Rb8 Qc7 exd5 Rxd5 a6 Nd4 Rc8 >Qb6 Rc1+; > >It likes the move g3 with a score of +4.11 after 30 seconds. It also stays with >this move if the search is done longer. Is there anything wrong with the move, >or is it really almost as good (or better?) than the three moves given? Here is one line of the analysis from Project Apocalypse. (We typically run a position several times -- especially test positions). rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - acd 14; acn 106176097; acs 511; bm Qxa8 d6 dxe6; ce 435; id "WAC.031"; pv g3 Bxg3 hxg3 exd5 Rxd5 Qb8 Qc6 a6 Rd7 Qe8 Qd5 Rc8 Ng5 Rc2 Nxf7 Rxb2; One tip for finding out if the other positions are better is to actually select them and let the program run for a very long time on the new positions. If a mate is found you can be fairly certain that the position was true and the computer's first guess was wrong. Sometimes you will also see a sudden huge jump in ce when the new position is chosen instead of searching them all. On the other hand, sometimes the result is going to be indeterminate -- where it would take a GM or an extrordinary computer to come to any sort of conclusion. In fact, this very position is one in a set that is undergoing a very "special" study right now.
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